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From: Tim Wescott on 24 Jun 2010 14:24
On 06/24/2010 10:54 AM, Vladimir Vassilevsky wrote:
>
>
> Tim Wescott wrote:
>
>
>> You'll still have to do some careful analysis of how the loop will
>> respond to the asynchronous sampling, but you may actually get there
>> from here on this part of it. When you do the analysis you'll find
>> that when you're in perfect lock the asynchronous sampling of the PFD
>> won't matter at all, because its output will be zero.
>
> Balancing on the razor edge. In practice, there will be either a dead
> band or an area of the extreme sensitivity to all kinds of noise and
> interferrence.

No kidding. Hence the next sentence: "So you'll want to shine a light
on..."

I suppose I maybe didn't stress that enough -- but can you?

--
Tim Wescott
Control system and signal processing consulting
www.wescottdesign.com
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